Manley 461000DT-1 Premium Steel Piston Ring Set 100mm Bore File Fit

The Manley 461000DT-1 is a high-performance single piston ring set engineered for precision engine builds. This file-fit ring set features a 100mm (3.937 inch) bore diameter and is designed for Subaru EJ-series engines including EJ205 and EJ257 applications commonly found in WRX and STI models.

Key Features:

• Premium steel top ring construction for superior durability in high-performance applications
• Bore diameter: 100.00mm (3.937 inches)
• Ring widths: 1.2mm x 1.2mm x 2.0mm configuration
• File-fit design allows precise end-gap customization for optimal sealing
• Napier-style second ring with reverse twist cast iron construction
• 3-piece standard tension oil ring with tabbed oil rails
• Ductile iron top ring with plasma moly in-lay for enhanced wear resistance
• Oil ring tension: 9-13 lbs for reliable oil control

This single ring set is ideal for precision engine builders who need individual replacement rings or are building engines one cylinder at a time. The premium steel top ring design makes this ring set particularly well-suited for high horsepower builds, forced induction applications, and turbocharged engines where extreme cylinder pressures demand maximum ring durability and sealing performance.